Question

what is black hole? ​

Answer 1

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➝A black hole is an area of space with a gravitational field so strong that nothing, not even light, can escape it.

Answer 2

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Black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes.